diff --git a/modular_skyrat/master_files/code/modules/reagents/reagent_containers.dm b/modular_skyrat/master_files/code/modules/reagents/reagent_containers.dm
index 0945a17b8b3..15231948478 100644
--- a/modular_skyrat/master_files/code/modules/reagents/reagent_containers.dm
+++ b/modular_skyrat/master_files/code/modules/reagents/reagent_containers.dm
@@ -1,4 +1,6 @@
 /obj/item/reagent_containers/click_alt(mob/living/user)
+	if(!has_variable_transfer_amount)
+		return NONE
 	if(length(possible_transfer_amounts) <= 2) // If there's only two choices, just swap between them.
 		change_transfer_amount(user, FORWARD)
 		return CLICK_ACTION_SUCCESS